Home / 21,959.84-30,307.44-12,530.24

Finding the Fourth Proportional to 21,959.84, 30,307.44 and 12,530.24

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Solution

The fourth proportional to 21,959.84, 30,307.44 and 12,530.24 is: 17,293.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,959.84 : 30,307.44 = 12,530.24 : x
  2. Step 2: Convert to fraction form
    21,959.84/30,307.44 = 12,530.24/x
  3. Step 3: Cross multiply
    21,959.84x = 30,307.44 × 12,530.24
  4. Step 4: Simplify right side
    21,959.84x = 379,759,496.99
  5. Step 5: Solve for x
    x = 379,759,496.99/21,959.84
  6. Step 6: Final answer
    x = 17,293.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.